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Asian-Australas J Anim Sci > Volume 10(6); 1997 > Article
Swine Nutrition and Feed Technology
Asian-Australasian Journal of Animal Sciences 1997;10(6): 609-613.
DOI: https://doi.org/10.5713/ajas.1997.609    Published online December 1, 1997.
Antifertility effect of Neem (Azadrichta indica) seed kernel meal in chickens
J. Mohan, Praveen K. Tyagi, Pramod K. Tyagi, S. V. S. Verma, R. P. Moudgal
Abstract
The reproductive performance of forty two male broilers divided into three similar groups and fed on isocaloric and isonitrogneous diets containing 0, 10 or 20% water washed neem seed kernel meal (WWNSKM) was investigated from 20 to 32-wks of age. Results on semen characteristics revealed that feeding of WWNSKM led to significant (p < 0.05) reduction in semen volume, sperm concentration associated with increased incidences of morphological abnormalities in the spermatozoa when compared to that of the control birds. A drastic reduction in the fertilizing ability of spermatozoa was observed, the adverse effects being more at higher inclusion level of the cake. Hatchability of eggs also declined in the WWNSKM fed group. Histological examination of testes revealed a higher number of degenerating cells and poor spermatogenesis along with multinucleated giant cells in the seminiferous tubules of the testes of birds receiving the high dose of WWNSKM in diet. It may be concluded that the feeding of WWNSKM by incorporating in isocaloric and isonitrogneous diets to cockerels is associated with adverse effect on their fertility.
Keywords: Neem Seed; Chicken; Semen; Fertilizing Ability; Histological Examination


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